The aim of the current study was to use qualitative analysis to examine the ways in which young people with experience of romantic relationship breakup interact with each other on an Internet-mediated discussion forum and to ascertain the function of the interactions. Participants were 31 registered forum users and 10 forum moderators. Findings were based on content analysis of 238 messages posted across 28 distinct discussion threads over 12 consecutive months. Nine different types of interaction were identified. In each case the function of the interaction was identified (e.g., to relay personal experiences or solicit opinions of others) and illustrated using quotations from the data set. Online discussion forums that are facilitated by trained moderators offer a safe space for young people to disclose personal information and express their emotions in respect of romantic relationship breakup. Online interactions are rich in empathy and peer support is evident among visitors to such forums.